Improvement in peg-raspers



W. B. ARNOLD. Peg-Rasper.

N 213,729. Patented April 1,1879.

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N.PETERS, PHDTOALITHOGRAPHER, WASHINGTON D c UNITEDSTATES PATENT QFFIGE.

WILLIAM B. -ARNOLD, OF NORTH ABINGTON, MASSACHUSETTS.

l MPROVEMENT IN PEG-RASPERS.

' Specification forming part of Letters Patent No- 213,729, dated April 1, 1879; application filed December 9, 1878.

To all whom "it may concern:

Be it known that I, WILLIAM B. ARNOLD, of North Abington, of the county of Plymouth and State of Massachusetts, have invented a new and useful Improvement in Pegsharpen them .to advantage, owing; to their teeth not projecting radially beyond their supporting-base.

in carrying out my invention, I make the rasper with a conical or tapering body, and with each of its rasping-teeth radiating therefrom and extending from and beyond the base of the body, in the plane thereof, they being formed and arranged to cut at the apex of the body and in the crown or convexity of the. rasper.

By my construction the curved edges of the cutters, being those which are to do the work of rasping the pegs, can be reached and sharpened to excellent advantage when such may be required.

In the drawings, aa,&c., denote the cutters, and Atheir tapering carrier, which usually is in one piece with the said cutters, they radiating from its axis in the manner, and beyond its sides and base, as represented.

Figs. 5 and 6 are opposite end views of a flatter stellated rasper provided with my improvement, it being for use in the toe part of they extend in manner as shown.

What, therefore, I claim as my invention 1s The improved stellated peg rasper con structed as describedviz., with a conical body and each of its rasping-teeth to radiate therefrom, and to extend from itsbase in the plane thereof, and formed to cut at the apex of the body and in the crown or convexity of the rasper, all as set forth.

WIIJLIAM B. ARNOLD.

-Witnesses: ELWIN F. OROUTT,

' N. A, GURNEY. 

